Sewing machine attachment



June 19, 1945. c. SEAMAN SEWING MACHINE ATTACHMENTS Filed April 6, 19453 Sheets-Sheet 1 IN VEN TOR. CHA RL. E5 SEAMAN ATTORNEK June 19, 1945.c. SEAMAN SEWING MACHINE ATTACHMENTS 3 Sheets-Shet 2 Filed April 6, 1943IN VEN TOR. CHARL": .SEAMA v June 19, 1945. Q SEAMAN 2,378,730

SEWING MACHINE ATTACHMENTS Filed April 6, 1943 3 Sheets-Sheet 3 40INVENTOR.

OmRL/ss SEAMAN ATTORNEX Patented June 19, 1945 UNI TED STA -Es PATENTFFlC E 2378,730 SEWING MACHINE ATTACHMENT Charles"Seaman, JamaicaEstates, NiYI Applfic'ationApril 6, 1943,: Serial" No.- 481,971 18Claims (01. 112-214) This invention relates to 'sewingmachines and.

particularly to sewing machineattachments:

Prior to this invention, when two or'more plies,

formed of a single "fabric or superposed f-abrics;

were fed'through the stitching'position-of asewing machine'fo'rthe'purposeof forming a hem 'or seam respectively, the upper ply was notfed at the same rate as the lower'p-ly' which was-in en'- gagementwiththefeeddogs. Frequently,as a' consequence, the lower ply" Wasgathered or puckered more-0r less 'h'apha'zar'dly. This 'haphazardgathering 'or puckering is-highly undesirable.

In the aforementioned'prionart practice, it was essential for theoperator 'to manuallycontrol the feeding of the material to be hemmedandat all'times carefully and visually observe the folding aridstitchingoperation. If theoperation were not so observed, anirregular'row of stitches and also sometimes varying widths'o-f hem, inaddition to'the gathering'previously men.-

tioned, would 'b'e obtained. As a consequence, a

blind individual-ocular not be a successful operator on such work;

An object of this invention is a sewing'm'achine an attachment of thetyp'epreviouslymentioned which may be quickly rendered-inoperative inthe event it is'desirecl'not'to entirely remove'the-attachment' ir'omthe-sewing machine.-

Otherobjects will become apparent from the following completedescription" of the invention.

In general, the objects of one phaseofthis' invention' are obtainedbyproviding-meansto engage and 'feed'the topply of a plurality of pliesof "material in the travel thereof to the stitching position atsub-stantiallythe'same linear rate of speed as the lowermost ply isfedbythe feeddogs, Other ob'jects of the inventionare achieved byproviding means to "disposethegoods in position for stitching-by merelyh'andling'the goods without requiring actualobservance thereof. Themeans =for feedin-g the top ply comprises-a roll positioned in' advanceof the' presser-foot: The:

roll is -'adjustably mounted On an arm '"adjustably orloweredwhenthe=presser foot is raised'or-lowered respectively. Becauseofthe manner: in which the armr-carryingitheroll is, mounted on thepresser--foot'-bar; th roll maybe raised or lowered as desired,independent of the presser:

foot" bar. Theutopi ply-engaging-roll. is driven by means driven fromthe pulley: end @of 'thesma chine, as willbe more fully described:hereinafter.-

In the preferred embodiment -.of the invention; there is also/provideda' roll at'the' rear: of thehead =and cooperating with. thework support[to engage=and feed the'materiali-after it hasleft thestitchingposition.- The rollat the rear-ofithe work support is, as willbehereaftenmorelfully, explained, also driven fromthe pulley;endi of:the machine;

In advance. of the stitchingnposition, there. is providedv means ,todispose the goods .in position. for stitching. Thisrneans is providedwith a guide whereby, when the raw edgevoffth e goods isman-v uallydisposed to abut said guide, the goods .will be properly positionedforstitching; The guideis so constructedthat the vp-ositioningofv the rawedge of the goods can be expeditiously and cf.- fectively accomplished.solely by the hand without the necessity of .visually observing thesame. Thus, the machine can be successfully operated even by a blindindividual.

It will be apparent'from the description that the invention can beapplied to the-stitching together by a single or multiple-needle machineof a plurality of plies formed of the same or' different materials, theplies being obtainedbyfolding or superimposition of the goods; Forconvenience and brevity, the invention will be specifically illustratedand described in connection with producing a'hem in which the raw'edgeis concealed and preferably also secured between a top and bottom plyobtained'by folding the-goods.

In the drawings,

Figure 1 i a top plan view; partlybrokenaway for clarity, of "er-sewingmachine withthe 'attachment positioned in place;

Figure 2 is an end 'view looking to theleft of Figure 1; I

Figure 3' is an end view looking'to the right of Figure 1f;

Figure 4 is a section taken on the-line 4-4 of Figure 1; y

Figur 5 is a perspectiveof the sup-port and driving-mechanism 'of theattachment; and

Figure 6 is a perspective digrammatic illustration including the guideand showing the fold-.

ing of the material and the stitching thereof.

Referring now to the drawings, wherein like reference numerals designatelike parts, the reference numeral I6 designates a sewing machine headcarried on a base l2. At one end, the head I is provided with a needlebar l4 which carries a needle I6. The needle bar I4 is reciprocated bymeans including a driving shaft [5 which is provided with a pulley H3 indriving relationship thereto. The pulley I8 is driven by a belt from anysuitable driving means (not shown). The head In is also provided with apresser foot bar 24 which carries a presser foot 26, which cooperateswith feed dogs 28 operated in the usual manner by a four-motion feeddrive mechanism (not shown) and passing through slots 30 of a coverplate 32. The presser foot bar 24 can be elevated and lowered by means(not shown) through the manual actuation of the presser foot lever 36.It is to be noted that the needle bar l4 and presser foot bar 24 are onone end of the head [6 and that the pulley l8 and the drive 26 thereforare on the opposite end of the sewing machine head. It will further beobserved that the details of the machine thus far described are those ofa standard single-needle sewing machine.

In the embodiment shown (see Figure 6), a

fabric 38 is rolled to form a two-ply material, the two plies, forpurposes of illustration. being designated by the reference numerals 46and 42. The raw edge of the ply 42 is then rolled inwardly and disposedintermediate the two plies 40 and 42 to constitute a ply 44, in whichcondition the goods is fed through the path of travel of the needle l6for stitching.

The fabric 38 is folded into position for stitching, as above described,by means of a folder 46 disposed in advance of the presser foot. Thefolder 46 is provided with an arm 48, which is carried on an armpivotally mounted at 56 on a support 52 secured to the base 12 by meansof screws 54. In Figure 1, the folder designated in full linesillustrates the folder in operative position; and the folder illustratedin dotted lines illustrate the folder in inoperative position. Thefolder is secured in position by means of the screws 55 cooperating withthe slots 56 and holes (not shown) in the support 52. A pin 51 serves toengage the arm 48 and constitute a stop therefor. To move the folder 46into inoperative position, the screws 55 are disengaged from the holesin the support 52 and the arm 46 is moved in the appropriate directionabout the pivot 56.

The folder 46 is provided with an edge guide control 60 adjacent acurved depression 6|, for

reasons which Will become apparent hereafter.

In operation, the goods 38 is manually folded to form the plies 46 and42 and, in this condition,

fed into the mouth of the folder 46. The lower ply 40 is fed into themouth, as at 62, and the top ply 42 is positioned on the top of thefolder and manually adjusted so that the raw edge thereof i in abuttingrelationship to the edge guide 66.

The folder 46 is of a construction which will roll the raw edge of theoriginal ply 42 and dispose it. as a ply 44, intermediate the top andbottom plies, as above described and as shown in Figure 6.

At the exit end of the folder, there is provided a tongue or guide 63,over which the folded material is fed in its travel from the folder 46to and through the stitching position. As shown in the drawings, theguide 63 terminates in close proximity to the presser foot 26.

A roll 66 is disposed in cooperative relationship with the tongue 63 andis adapted to engage and feed the top ply 42 at a linear speedsubstantially equal to the feed of the lower ply 46 by the feed dogs 28.The roll 66 is rotatably mounted on the lower horizontal member 61 of anarm 68, the upper horizontal member 69 of the arm being rotatablysecured in a block 16 adjustably and securely mounted on the presserfoot bar 24. The roll 66 is provided with a pulley 12 whereby, uponrotation of said pulley 12, the roll 66 will be rotated. In the specificform shown, the arm 68 for the roll 66 is formed of a single member bentinto a form having the lower member 61 and the upper member 69 connectedby a vertical member.

The roll 66 is positioned in cooperative relationship with th guide 63and particularly the forward end thereof is in close proximity to thepresser foot. As shown in the drawings (Figure 1), one end of the roll66 is substantially in alignment with the short member of the presserfoot, and the toe of the long member of the presser foot is in avertical plane which is substantially tangent to or slightly passesthrough the roll. The roll 66 will also be raised or lowered uponraising or lowering-of the presser foot bar 24. The roll 66 can beraised or lowered with respect to the guide 63 by adjusting the positionofthe block 10 on the presser foot bar 24. The roll 66 can also beadjusted transversely of the guide 63 by positioning the roll on themember 61. A shown in Figure 2, a member H, secured to thehorizontalmember 69, is provided with projection 13 and 15 whichcooperate with a pin 19. In operative position, th projection 13 is inengagement with the pin 19 and maintained in that position by thetension of an elastic belt 13. Upon rotary movement of the member 69 inthe block 10, the roll 66 is moved toinoperative position independent ofthe presser foot bar 24. In inoperative position, the projection 15 isin engagement with the pin 19 and so maintained by the belt 18.

The roll 66 may be formed of any suitable material, and, in the eventthe material of which it is formed does not have sufiicient tractiveforce, the latter may be imparted thereto in'any convenient manner. Ahard rubber roll and a cork roll are illustrative examples of rollswhich will give satisfactory results.

In the embodiment shown in the drawings and now being described, thereis provided a roll 14 formed of any suitable material and provided witha tractive surface, such as cork. This roll 14 i positioned to the rearof the stitching position and is so disposed that it will engage thestitched material after leaving the stitching position, preferably atthe seam thereof, and in cooperation with the work support (base ofmachine, table, etc.) will feed the material across the work support.The peripheral speed of the roll 14 is substantially equal to thefeeding speed of the feed dogs 28.

The roll 14 is secured to a shaft '16 rearwardly of the head andextending transversely of the work support, which shaft, as previouslmentioned, is driven from the pulley end of the machine. It is to benoted that a pulley TI is secured to the shaft 16 and which, by means ofa belt 18 formed of an elastic material, such as rubber, drives thepulley 12, thereby imparting rotary motion to the roll 66.

Referring to Figures 1 and'5, a pulley is P065 408 constitiita-zrediicing gearing and, by

proper seiection of 'the gearsyany desirewspeed of th'e sha'ft fli-'m'ay'- be-obtained.

"Ihtenne'diatethe*arm 9'4"and"the'pu1-1ey "ILthe shaft 'l6' is-providedwith a *long sl'eeve llw which constitutes "a -protective covering forthe shaft'; The bloom-92; (see Figure 5) is provided with a pair- 'ofdepending-ears' 'I' I =th'r0ugh which a'sh'aft' H2 extends. "Theopposite-'ends"of-' the shaft I I2 arejournaled'im bosses-"l I4 carriedby the spaced arms i I 6 extending from thebase H 8 Suitable means, suchas set screws I20, secure'th'e-ends'oftheSh'aftI I 2"'in bosses H4;A-spring I21 is disposed between collars l '22 and 124; one end ofthespring 'bein'g secured to the "collar I22 and 'the other end ofthespring being secured to the blo'ck 92;- The"sprin'g"normal1y urgesthe block- "92'; whichais 'pivotall'y mounted 'on' the-' shaft I I '2;downwardly. 7

The base I- I8 is: secured to the work support behind (tothe rear)'the'ih'ead by meansoi screws I30; as shlown in Figure' -l. the base I;It is previded with l'eveli'rig 'screws I32; whereby *the b ase I? I I 8may be adjust'ed "i leveled) prioritdsecuring ii: in: 'place bythe-screws I30 I The-leveling screws I32 are provided-with washerslam-loosely I swedged on: the lower ends" of the screws? and are'iintended to I be disposed inter-' mediate the work support and 'thebottomwi the base'i l ili. z I

. Fromrthedoregeirigg it is clearthat thebloc'k 9zgwhichrcarriesrthemeans-foriiriving thesh'a-ft 16, is pivotal'ly 'mounted on'thebase H8and that ibis-continuously unged 'by the 'sphing lfl tomovecounterclockwise aboutthepivot'shatti I t2,- where= by :themorksroll i741willibe'fdisposed in cooperative relationshipa 'onrrthe lworkisuppottlWhen it-isdesire-d ito 'cremove thexcorkmolli from cooperativerelationship withrirthe work; support, it (the cork roll :14)iselevatedabyrotating thelblock '92-' m'an'ually :clockwise 'onwthefpivot: shaft I [2; The blo'ck 92 may wbezretained in tsuchi iposition bya'engagement: thereof byzthe top. off the: cutVed' spring- 'MO which is'securedrat its-ilowerendby screws I42 to the base H8: It isrpointe'dout :that the 'drive means forthe rol1v1'4 andthe manner of render: ingthe rollv I'll-inoperative are itheisame -as that I described: inrmyapplicationaiseri al No; 4812972 for Sewing-machineandrattachinent forprevent ing accumulation of the work onithe= work"sup-- port," 'filedtonApril" 6; 1943.52

It is-to-be' notedxthatlwhenzthercork roll 14 has been: disposed; in'inoperattve mosition'; the roll 6'5 may vremain inits operativefpositioni.-or-,-rby-rota- H0111 of the member-69 iinltheiblock.Iillfmay also be moved-.todnoperative position. When the-cork roll 14 isrmoved't oinoperative positionand the roll 66 remains"inwoperativeiposition', the latter will be-continued to bet-driven; aspreviousiy-"de scribedv The .change" 'in'sposition'. of Zth'e- "drivingmechanism, due to the fact"that-the'beltst-IS and 82 are =zmade-;ofelastic "material "suchzassmbber,

Adjacent eac'h end;

winnot materially:interfere with' thewdnivingiofthe roll 1 6 6inxoperative position when thiscis desired.

' Frequentlyyin theizoperati'on'hf the machine; the 'presser foot 1 iselevated or "lowered: Inithe form described; due Etc themountingofthefiroll 6 5 it '7 (the roll '6 6 7 will' :be :given a similarmovement; For threading'ofithe goodsitiis desirable that fthe 10111143180be-elevatedand'ren'dereduineffective when;"= iorexample; the:presserfoot bar Whis-elevated. With this 'in 'view; the shaft 16'Iisprovided "with a cap l'5W WhiCh iis non-'rot'atably freely-disposed? onthe "free i end off the "shaft lii and: rests on the'larmi'. I 5210f theli'ftrod 1 sum constitute anon-rotatable bearing forthashaft. The-upperrend fof: the: lift "rod fI 54""is adjustably (slid'ablyr "securedtbymeans of a "set screwil 56 in' a' block I58 adjfustably mounted-Yonand'secured torthetpresser'ioot bar 214." The %li'ftrod I-54" is ofsuch'a design that when the presse'r foot bar 24 is elevated; thetarm iI52*of-the lift ro'd"'I 54 will elevate theshaft 16, overcoming'the force'of" the spring I 2 I which urges :"sa'id shaft downwardly;

' Upon therlowering oi'the-presser foot, thearm I edge'thereof "toprovide (the plies lll'and'42; is fed to the folder -46,andthef'operater, by means of the fingers; positions'andmaintains theraw edge of -the 'ply 42 "in abutting' relationship with' the guide 66:As'longias'this conditionisnmaintained; them-achine-will operateautomatically and produce-a "uniformly stitched seam 'free' of gathers;Since visual oloservati'onr: is notnecessary; rthe machine-mayi beoperatedzby blihdfindividu'als. If Pier-some "re'asonwonother ith'e'roll66 operates ataggreater speedthanrdesired;thenithe operator by hisfingers may exert a :pressure on the "ply-42 andthereby overcome anyundesirable results.-

For threadingwhe machineg-the presser foot bar 2' l-is-elevated'whereby"the 'rolls 66 and T4 will 'also be elevated 'andthe goodsthreaded through the folder; Atterthre'ading', the 'presserfoot islowered and-the machine'operated: When it is: desired to renderthe' roll 14' inoperativefthe black -92" is manually/"turned ion the'pivot' shaft I4 2 locked inmositi-on b'y the spring 1'40? Since-it is:obvious thatwanious changes and modifications may 'be 'made in the abovedescrip-= tionw-w-i-thoutdeparting from the mature or "spirit thereof,this invention isnot' re'stricted thereto except as setforth in theappended claims;

I claim:

1.. A sewing machine having'a'worksupport, a head, a 'rec'iprocatingneedle "bar carrying'a needle; means to reciprocate sai'd'needle barincl'ud ing'a-driving-shaft and "a pulleyinhrivirig relationship to saidshaft; said-pulley and 'needle bar being on opposite ends 'of said'head,' feeddogs.= a presser' foot barre-flying apresser footco0peratingr-rWi-thsaid feed'dogs, means-to form a phirality'ofsnperposed'plies"of "material in advance of the stitchingposition, a T011 in advance of the stitching position to engage andfeed" the "top ply. to the 'presser"'foot,* means carried "by saidpresser foot bar t0"p0siti0n"sai'd roll in" advance of-"the'stitchingposition'; and means 'driven from the pulley end of said.machine to drive said ro'll contihuously'duringoperation'of the machine:

2;; 'A-sewing am'achine havinga work support, a ..-.head; e :aureciprocating: needle bar 1 carrying a needle, means to reciprocate saidneedle bar including a driving shaft and a pulley in drivingrelationship to said shaft, said pulley and needle bar being on oppositeends of said head, feed dogs, a presser foot bar carrying a presser footcooperating with said feed dogs, means to form a plurality of superposedplies of material in advance of the stitching position, a roll inadvance of the stitching position toengage and feed the top ply to thepresser foot, means adjustably carried by said presser foot bar toposition said roll in advance of the stitching position, and meansdriven from the pulley end of said machine to drive said rollcontinuously during operation of the machine.

3. A sewing machine having a work support, a head, a reciprocatingneedle bar carrying a needle, means to reciprocate said needle barincluding a driving shaft and a pulley in driving relationship to saidshaft, said pulley and needle bar being on opposite ends of said head,feed dogs, a presser foot bar carrying a presser foot co operating withsaid feed dogs, means to form a plurality of superposed plies ofmaterial in advance of the stitching position, a roll in advance of thestitching position to engage and feed the top ply to the presser foot, ablock on said presser foot bar. a support having one end thereof mounted in said block, said roll being rotatably mounted on the other end ofsaid support, said support being of a design to position said roll inadvance of the stitching position but in close proximity to said presserfoot, and means driven from the pulley end of said machine to drive saidroll con-- tinuously during operation of the machine.

4. A sewing machine having a work support,

a head, a reciprocating needle bar carrying a needle, means toreciprocate said needle bar including a driving shaft and a pulley indriving relationship to said shaft, said pulley and needle bar being onopposite ends of said head. feed dogs, a presser foot cooperating withsaid feed dogs, means to form a plurality of superposed plies ofmaterial in advance of the stitching position, a roll in advance of thestitching position to engage and feed the top ply to the presser foot, aroll rearwardly of the stitching position and cooperating with the worksupport to engage the stitched material and advance the sameover saidwork support, means driv'en from the pulley end of the machine to'drivethe rearwardly positioned roll, and means connected to said driven meansto drive the top ply-engaging roll.

5, A sewing machine having a work support, a head, a reciprocatingneedle bar carrying a needle, means to reciprocate said needle bar including a driving shaft and a pulley in driving relationship to saidshaft. said pulley and needle bar being on opposite ends of said head.feed dogs, a presser foot cooperating with said feed dogs. means to forma plurality of superposed plies of material in advance of the stitchingposition, a roll in advance of the stitching position to engage and feedthe top ply to the presser foot. a shaft rearwardly of the head, a rollmounted on said shaft rearwardly of the stitching position andcooperating with the work support to engage the stitched material andadvance the same over said work support. means driven from the pulleyend of the machine to drive said shaft, and means driven by said shaftto drive the top ply-engaging roll.

6. A sewing machine having a work support, a head, a reciprocatingneedle bar carrying a needle, means to reciprocate said needle barincluding a driving shaft and a pulley in driving relationship to saidshaft, said pulley and needle bar ,being on opposite ends of said head,feed dogs, a presser foot bar carrying a presser foot cooperating withsaid feed dogs, means to form a plurality of superposed plies ofmaterial in advance of the stitching position, a roll in advance of thestitching position to engage and feed the top ply to the presser foot, ablock on said presser foot bar, a support having one end thereof mountedin said block, said roll being rotatably mounted on the other end ofsaid support, said support being of a design to position said roll inadvance of the stitching position but in close proximity to the presserfoot, means to mount said support on said block to permit disposition ofsaid roll in operative or inoperative position, a shaft rearwardly ofthe head, a roll mounted on said shaft rearwardly of the stitchingposition and cooperating with the work support to engage the stitchingmaterial and advance the same over said work support, means driven fromthe pulley end of the machine to drive said shaft, and means driven bysaid shaft to drive the top plyengaging roll.

'7. A sewing machine having a work support, a head, a reciprocatingneedle bar carrying a needle, means to reciprocate said needle barincluding a driving shaft and a pulley in driving relationship to saidshaft, said pulley and needle bar being on opposite ends of said head,feed dogs, a presser foot bar carrying a presser foot cooperating withsaid feed dogs, means to form a plurality of superposed plies ofmaterial in advance of the stitching position, a roll in advance of thestitching position to engage and feed the top ply to the presser foot, aroll rearwardly of the stitching position and cooperating with the worksupport to engage the stitching material and advance the same over saidwork support, means carried by said presser foot bar to elevate saidrearwardly positioned roll when the presser foot bar is elevated, meansdriven from the pulley end of the machine to drive the rearwardlypositioned roll, and means connected to said driven means to drive thetop ply-engaging roll.

8. A sewing machine having a work support, a head, a reciprocatingneedle bar carrying a needle, means to reciprocate said needle barincluding a driving shaft and a pulley in driving relationship to saidshaft, said pulley and needle bar being on opposite ends of said head,feed dogs, a presser foot bar carrying a presser foot cooperating withsaid feed dogs, means to form a plurality of superposed plies ofmaterial in advance of the stitching position, a roll in advance of thestitching position to engage and feed the top ply to the presser foot, ablock on said presser foot bar, a support having one end thereof mountedin said block, said roll being rotatably mounted on the other end ofsaid support, said support being of a design to position saidroll inadvance of the stitching position but in close proximity to the presserfoot, a shaft rearwardly of the head, a roll mounted on said shaftrearwardly of the stitching position and cooperating with the worksupport to engage the stitched material and advance the same over saidwork support, means carried by said presser foot bar to move said shaftand elevate said rearwardly positioned roll when the presser foot bar iselevated, means driven from the pulley end of the machine to drive saidshaft, and means driven by said shaft to drive the top ply-engagingroll.

9. A sewing machine having a work support, a

head, a reciprocating needle :bar carryinga needle, means .toreciprocate said needle=bar including a .driving shaft and'a pulley inidriving relationship to said shaft, said pulley and needle bar being onopposite ends of said head, feed dogs, a presserfoot cooperating withsaid'feed dogs, a folder in advance of the stitchingxposition tofold-the free edge-of the upper ply of the material to bestitchedtinwardly and dispose it between the upper and lower plies,said: folder having a guide at the mouth thereof to engage the free edgeand thereby properly position-the material and a tongue at the exit endthereof over which the folded material is fed, said tongue terminatingin advance of the stitching position and in close proximity to saidpresserr foot, a roll in cooperative relationship with said'tongue toengage and feed the topply to the presser foot, and'meansdriven from thepulley end'of-said machine to drive said roll-continuously duringoperation of the machine. i

' 10. A sewing machine having a work support, ahead, a reciprocatingneedle'bar carrying a needle, means toreciprocate said needle barincluding a driving shaft and a pulley in driving relationship to saidshaft, said" pulley andneedle bar being on opposite ends of'said head,feed dogs,

a presser'foot bar carrying a presser foot coopmating with said feeddogs, a folder in advance of the stitching position to fold thefree edgeof the upper ply of the material to be stitched inwardly and dispose itbetween the upper and lower plies, said folder having a guide at themouth thereof to engage the free edge and thereby properly position thematerial and a'tong'ue at the exit end thereof over which the foldedmaterial is'fed, said tongue terminating in advance of the stitchingposition and in close proximity with'said presser foot, a roll incooperative relationship with said tongue to engage and feed the top plyto the presser foot, means carried by said presser'foot bar to positionsaid roll in cooperative relationship with said tongue, and meansdriven'from the pulley end of said machine to drive saidrfollcontinuously during operation of the machine.

11. A sewing machine having a work support, a head, a reciprocatingneedle barcarrying a needle, means to reciprocate said needle bar.ineluding a driving shaft and a pulley in driving relationship to saidshaft, said pulley and needle barv being on opposite ends of said head,feed dogs, a presser foot cooperating with said'feed dogs, a folder inadvance of the stitching position to fold the free edge of the upper plyof the material to be stitched inwardly and dispose it between the upperand lower'plies, said folder having a guide at the mouth thereof 'toengage the free edge and thereby properly position the material and atongue at the exit end thereof over which the folded material is fed,said tongue terminating in advance of the stitching position and inclose proximity to said presser foot, a roll in cooperative relationshipwith said tongue to engage and feed the top ply to the presser foot, aroll rearwardly of the stitching position and cooperating with the worksupport to engage the stitched material and advance the same over saidwork support, means driven from the pulley end of the machine to drivethe rearwardly positioned roll, and means connected to said driven meansto drive the top ply-engaging roll.

12. A sewing machine having a work support, a head, a reciprocatingneedle bar carrying a needle, means to reciprocate said needle barincluding a driving shaft and a pulley indrivingrelationshipto'asaidxshaft, said pulley andzneedle bar being i011lopposite ends of said head, feed dogs, saupresse'r foottfbar carryingacpressernfoot cooperatinglwithasaid feed dogs, a folder in .ad-, vanceof etherstit'ching position to. fold the, free edge.: .of..thecupper:ply of. the material to be stitched: inwardly and dispose it between theupper and lower plies, said folder havinga guide at the mouth thereoftoengage the free edge and thereby :properly position-the material andatonguevatttheexit endwthereof over which the folded: material isfed,said. tongue terminating, in advance of the-stitching position and .inclose proximity :tosaid :presser foot, a roll in cooperativerelationship with said-tongue. to engage and feedthe topltplyztothe-presser foot, a roll rearwardly sofzthe :stitchingcposition andcooperating v with ztheaworkt. supportto engage. the stitched materialand advance the same over said'work support, meanszcarried bysaidpresser foot bar to elevatesaid rearwardly positioned roll'when the.presser f00t=1bar is elevated, means driven fromntheipulley end of themachine to drive the rearwardly positioned roll, and means connected tosaiddriven means. to drive the top'ply-engaging roll. I

13. A sewing-machine having a work support, a head, areciprocatingneedle bar carrying a needle, means to reciprocate saidneedle-bar including a drivingshaftand a pulleyindriving relationship tosaid shaft, said'pulley'and needle bar being on opposite ends ofsaidhead,.;feed dogs, a'presser footbar. carrying: a presseri footcooperating with said feed dogs, a' folder inadvance of thestitchingposition to fold the free edge of the upper ply of the materialto be stitched inwardly andv dispose it .betweenwthe upper and lowerplies, said folder havinga-guide. at the mouth thereof to engage thefree :edgeand thereby properly position the material .and:-.a tongueat'the exit end thereof over which *the folded material is fed, saidtongue terminating in advance of the stitching position andin-closeproximity to said presser foot, a roll in'cooperative relationship withsaid tongue to engage and feed the top ply to the presser foot, a blockon said presser'foot bar, a support having one end thereof mounted insaid block, said roll being rotatably mounted on the other end ofsaidsupport, said support being of a design toposition saidroll incooperative relationship with said tongue, a shaft rearwardly of thehead, a roll on said shaft positioned rearwardly of the stitchingposition and-cooperating with the work support to engage thestitchedmaterial and advance the same over said Work support, means drivenfromthe pulley end of the machine to drive said shaft, and means driven bysaid shaft to drive the top ply-engaging roll.

14. An attachment for a sewing machine having a work support, a head, areciprocating needle bar carrying a needle, means to reciprocate saidneedle bar including a driving shaft and a pulley in drivingrelationship to said shaft, said pulley and needle bar being on oppositeends of said head, feed dogs, a presser foot bar carrying a presser footcooperating with said feed dogs, and means to form a pluralityofsuperposed plies of material in advance of the stitching position,said attachment comprising a block to be mounted on said presser footbar, a support having one end mounted in said block, a roll rotatablymounted on the other end of said support, said support being of a designto position said roll to engage the top ply in advance of the stitchingposition but in close proximity to the presser foot, and means to bedriven from the pulley end of the head to drive said roll continuouslyduring operation of the machine.

15. An attachment for a sewing machine having a work support, a head, areciprocating needle bar carrying a needle, means to reciprocate saidneedle bar including a driving shaft and a pulley in drivingrelationship'to said shaft, said pulley and needle bar being on oppositeends of said head, feed dogs, a presser foot bar carrying a presser footcooperating with said feed dogs, and means to form a plurality ofsuperposed plies of material in advance of the stitching position, saidattachment comprising a block to be mounted on said presser foot bar, asupport having one end mounted in said block, a roll rotatably mountedon the other end of said support, said support being of a design toposition said roll to engage the top ply in advance of the stitchingposition but in close proximity to the presser foot, a shaft to bemounted rearwardly of the head, a roll on said shaft to be positionedrearwardly of the stitching position to engage the stitched material andadvance the same over said work support, means to be driven from thepulley end of said machine to drive said shaft, and means driven by saidshaft to drive said top plyengaging roll.

i 16. An attachment for a sewing machine having a work support, a head,a reciprocating needle bar carrying a needle, mean to reciprocate saidneedle bar including a driving shaft and a pulley in drivingrelationship to said shaft, said pulley and needl bar bein on oppositeends of said head, feed dogs, a presser foot bar carrying a presser footcooperating with said feed dogs, and means to form a plurality ofsuperposed plies of material in advance of the stitching position, saidattachment comprising a block to be mounted on said presser foot bar, asupport having one end thereof rotatably mounted in said block, a rollrotatably mounted on the other end of said support, said support beingof a design to position said roll in operative position to engage thetop ply in advance of the stitching position but in close proximity tothe presser foot, mean to mount said support on said block to permitdisposition of said roll in operative or inoperative position, a shaftto be mounted rearwardly of the head, a roll on said shaft to bepositioned rearwardly of the stitching position to engage the stitchedmaterial and advance the same over said work support, means to be drivenfrom the pulley end of said machine to drive said shaft, and meansdriven by said shaft to drive said top plyengaging roll.

17. An attachment for a sewin machine having a work support, a head, areciprocating needle bar carrying a needle, means to reciprocate saidneedle bar including a driving shaft and a pulley in drivingrelationship to said shaft, said pulley and needle bar being on oppositeends of said head, feed dogs, a presser foot bar carrying a presser footcooperating with said feed dogs, and means to form a plurality ofsuperposed plies of material in advance of the stitching position, saidattachment comprising a block to be mounted on said presser foot bar, asupport, a roll rotatably mounted on one end of said support, saidsupport being of a design to position said roll in operative position toengage the top ply in advance of the stitching position but in closeproximity to the presser foot, means to mount said support on said blockto permit disposition of said roll in operative or inoperative position,a shaft to be mounted rearwardly of the head, a roll on said shaft to bepositioned rearwardly of the stitchin position to engage the stitchedmaterial and advance the sam over said work support, means to be mountedon said presser foot bar to engage said shaft and elevate the rollthereon when the presser foot bar is elevated, means to be driven fromthe pulley end of said machine to drive said shaft, and means driven bysaid shaft to drive said top ply-engaging roll.

18. An attachment for a sewing machine having a work support, a head, areciprocating needle bar carrying a needle, means to reciprocate saidneedle bar including a driving shaft and a pulley in drivingrelationship to said shaft, said pulley and needle bar being on oppositeends 01 said head, feed dogs, a presser foot bar carrying a presser footcooperating with said feed dogs, and means to form a plurality ofsuperposed plies of material in advance of the stitching position, saidattachment comprising a block to be mounted on said presser foot bar, asupport having one end thereof rotatably mounted in said block, a rollrotatably mounted on the other end of said support, said support beingof a design to position said roll in operative position to engage thetop ply in advance of the stitching position but in close proximity tothe presser foot, means to mount said support on said block to permitdisposition of said roll in operative or inoperative position, a shaftto be mounted rearwardly of the head, a roll on said shaft to bepositioned rear- 'wardly of the stitching position to engage thestitched material and advance the same over said work support, means tobe mounted on said presser foot bar to engage said shaft and elevate theroll thereon when the presser foot bar is elevated, means to be drivenfrom the pulley end of said machine to drive said shaft, and meansdriven by said shaft to drive said top ply-engaging roll.

CHARLES SEAMAN.

QERTIFICATE'OF CORBECTION'a Patent No., 2,578,750o June 19, 19L|J0CHARLES/SEAMAN? It is hereby certified that error appears in the printedspecification of the above numbered patent requiring correction asfollows: Page 5, seo ond column, line 52 for "operater read-}-0perator--; page 1;, second c0l=- umn, line 21,01aim 6 and line 59,,claim 7, for stitohing read -=-=st1tohed and that the said LettersPatent should be read with this correction therein that the same mayconform to the record of the case in the Pat'ent. Officem Signedandsealedthis 18th day of September, A0 Dn 19'45o Leslie Frazer (Seal)First Assistant Commissioner of Patents;

